V-type internal-combustion engine.



I L. COATALEN. 'V-TYPE INTERNAL COMBUSTION ENGINE; Y

AFPL|CAT |0N FILED OCT-24.1915. J Patented Nov. 272-1917.

Inventor-f {Louis Coatale L. COATALEN. V-TYPE INTERNALCOMBUSTION ENGINEV APPLICATION FILED OCT-24,1916.

Patented Nov. 27, 1917.

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Louis con-runs, or wonvnnnamrron, ENGLAND, Assmnoa or ONE-HALF re su'zreiim moron. can COMPANY LIMITED, or wonvnanamr'ron, ENGLAND.

.V-TYPE TfiTEBNAL COMBUSTION ENGINE;

To all whom it may concern:

Be it known that I, LOUIS subject of the King of Great Britain, and resident of Wolverhampton, in Staffordshire, England, have invented certain new and useful Improvements in" V-Type InternalCombustion Engines, of which the fol- Coa'rannn, a

Th1s invention relates to internal combustion engines having cam shafts driven by a train of gears from the crank shaft, particularly such as are used on aeroplanes, and its object is to provide improved grouping and operation of the auxiliaries and ignition devices. Among the former may be mentioned the water and oil pumps, the oil filter and the dynamo These auxiliaries do not require tobe accurately timed in relation to the crank shaft, but the ignition devices must be accurately timed. Thereforeno in removing and rep acing the auxiliaries, but the fitting of an ignition device is an great careto in sure that it is correctly timed, as will be readily understood. The auxiliaries and ignition devices ought also to-be placed where they are easily accessible, and m some cases have to be fairly frequently removed, so that ease of removal is important. It is the object of this invention to comply with these re uirements without emplo ing special drivin gears and drivin sha In t e accompanying rawings,

Figure 1 is a rear view of an engine having two rows of cylinders mounted upon one crank chamber at an angle to one another, which is constructed in accordance with this invention and is intended chiefly for use on aeroplanes.

Fig. 2 is a. side view of part of the same.

Fig. plate of the crank chamber, and

Fig. 4 is a longitudinal section showing a bracket and spindle for driving a dynamo.

Like letters indicate like parts throughout the drawings.

Inthis arrangement, the crank chamber cover late A at the rear endofthe engine has bo ted to it the water pump B, the oil filter C, and a casing containing two 011 pumps D and E. These two pumps are Specification of Letters Patent.

driving mechanism.

reat skill is calledfor -3 is a face view of the rear cover.

Patented Nov. 2?, 19157.

Application filed October 24, 1918. serial No. 127,482.

fitted at opposite ends of of which is'shown at D, driven crank shaft Z byskew gears E E in such a a spindle, the are.

from the ine- y that when he cover plate A is fitted the skew gears slide into mesh and vice versa as Wlll bereadily understood.

The water pump B is providedwith eithei fii a dog clutch or an equivalent connection so, coupling is automaticall that the drivin broken when 1: e cover plate is remov For example, the connection between the pump spindle and its driving shaft may be similar to that described later with reference to the connection for the spindle Ijrof lies approximately oen the oil straight out of the- The cover plate A may also have bolted to" bolts J 1 a bracket K for a carrying the chain sprocket name and a clutch for the shaft. The clutch the bosses J b 'short spindle lz M for driving a d connecting this wit in the case illustrated consists ofa fixed. plate M and a movable plate M acted u n'i 1 y a spring M so that the sprocket is gripped between the fixed and movable plates, but can be released by-moving the plate M to the left. It will be seen that theracket K is bolted to the cover. late A. by'

three bolts or the like located at the spindle L is driven by one ofthe en 'ne shafts, preferably the crank shaft Z. he connection between the spindle and shaft is of such a nature that it can slide-into and and that out of mesh. Thus the end of the shaft Z may have a dianietrical slot Z and a die.- metrical tongue L may en age this. It will be clear that when the b0 ts J are disconnected the bracket K can be removed. Also that the cover plate A with the bracket K in place can be detached and replaced without any ditliculty being experienced with reference to the couplings between the'operating shafts on the engine and the spindles of the auxiliaries such as the spindle L of the dj namo drive, and the spindle of the water P mP- The latter is preferablv driven by one of the intermediate train of gears between the crank shaft Z and the camshafts, which are located at the top of the cylinders O. The axis of the intermediate gear Which drives the water pump is at B The water pump, oil pumps, and dynano-drive do not require to be accurately timed relative to the crank shaft, but as the magnetos or other ignition devices must be accurately replaced after removal it is therefore desirable that these should not be carried by the lower cover plate A. Consequently they are carried by the upper timing gear covcr'plates P which inclose the greater part of the train of gearing between the cam shafts and the crank shaft. The

I magnetos are therefore arranged at the accessiblc end of the engine as shown and can conveniently be controlled by a single rod .which may be interconnected with the throttle valves of the carbureter. Thus there may be a single shaft R coupled by ,inantle each of these separately. Further,

the external connections, such as the waterand oil ,pipes are arranged at the accessible end of the engine, and close together, and they can all be within easy view of the aviator when the engine is fitted to an aeroplane; In addition, all the auxiliaries, ignition devices, and the spindle for the oil pump are driven. directly by shafts or gears which are essential to the engine and are not specially provided for the driving of the auxiliaries. This results in simplicity and reduction of weight, as will be readily understood.

Obviously each timing gear cover P may carry two or more magnetos instead of one a lower cover plate over part of said gear train, removable without disturbing said train, auxiliaries carried by and removable with said cover plate, an upper cover plate over the upper part of said train, an ignition device upon said second cover plate, easily disengageable driving connections be tween said auxiliaries and said gear train, and driving connections between said ignition device and said gear train, substantially as set forth.

2. In an internal combustion engine, the combination of a crank chamber, two rows of cylinders thereon, a crank shaft, cam shafts supported above said cylinders, trains of gearing between said crank shaft and said cam shafts, a lower cover late attached to said crank chamber and in, osing part of said trains of gearing which is removable without disturbing said trains, auxiliaries carried by and removable with said cover plate, an upper cover plate toeach of said trains, an ignition device carried by each of said upper cover lates and driven by said trains, and easily disengageable conneetions between said auxiliaries and part of said train of gearing, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS COATALEN. Witnesses:

JOHN MARSTON, W. M. Imrr. 

